Gas and air supply to large-chambered ovens.



H. 'KOPPERS. GAS AND AIR SUPPLY T0 LARGE GHAMBEEEDOVENS.

APPLIOATION FILED MAY 20, 1909. 933,993, Patented Sept. 14,1989,

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.HEINRICH KOif'PERs; or EssE'n-oN-THE-RUHR, GERMANY.

GAS AND AIR SUPPLY TO LARGE-CHAMBERED OVENS.

Specification of Letters Patent. Patented Sept. 14, 1999.

Applicationfiled my 20, i909. Serial No. 497,110.

To all whom it may concern:

Be it known that- 'I, Hn xmcn Korrnns, a

' citizen of the German Empire, and resident of 30 Isenbergst-rasse, Essen-on-the-Ruhr,

Germany, have invented a new and .useful Gas and Air Supply to Large -Ohambered Ovens, More Particularly Ovens for Generating Gas, of which the following is a specification.

The su )plyof gas 'andair to the vertical heating ues of large-chambered ovens by means of parallel gas and air channels, from the orifices'of which the gasiandl air ascend side by side, causes a long flame pf reduced produced, ow ng to the lnediate effect between parallel airand" gas supplyand complete nnxture. This device substantially consists'of a fire-proof nozzle surrounding the orifices of-two parallel vertical ducts which supply air and gas respectively, the said nozzle having a bore which tapers toward its upper end, so that it com- .pels the two streams to converge and become mixed. This nozzle is very simple and easily renewable. Observation in each particular case enables the most eflicient degree of convergence to be ascertained. The shape may approximate withany desired degree of closeness to'rthe fundamental shape which leaves the streams of air and gas parallel with each other. All the structural advantages of parallel-air and gas supply are retained. The supply. orifices are easy of ac-- cess, and can be inspected and cleaned while working, from an aperture in the top of the oven in the axis of the flue, if unpurified generator gas is used this is of the greatest importance for regular function of the apparatus. The acconi pany ng drawing shows in crosssection a construction embodying this improvement as applied to an inclinedchamber oven, the type of oven mainly used for generatinggas. Y

Air from the' two-chambered heater (1 flows through the vertical duct 7) on the base 0 of, the heating flue. Gas flows from the conduit 6 below the chamber r] through a duct f to the flue g; the upper part of the -duct is also vertical. In line with the ducts I) an f there is the usual aperture 2' in the top of the oven, normally closed by lugs 7c and Z. Over the orifices of the ducts I) and f is placed'the tapering nozzle 12?, which is made fast by means'of fire-proof cement and-is in contact with the outer rims of the orifices. The nozzle is preferably of elliptical cross-section, but may be of circular or angular cross-section. The parallel streams of air and gas issuing from the ducts 7) and f are caused by the nozzle to converge, and the air and gas become more or less mixed. Should. the nozzle .m or ducts b and become obstructed by dust or the like, the obstrucs l' tion can easily be removed by means of an iron bar inserted at 2'. r

The principle of introducing the air and gas in parallel streams, and then partly 'uniting them, is the sole means of effecting regular control with regard to the degree of intimacy of the mixture.

lVhat I claim is Air and gas supply for large chambered ovens with parallel ducts leading to-the heating flue, more particularly for ovens for generating gas, with a nozzle which has a bore tapering toward its upper end and the base of which embraces both orifices of the ducts, so that the streams of air'and gas are deflected toward each other, and mixed. to a degree depending on the angle of inclina tion of the inner surface of thenoz'z-le.

Signed by-me at Jolict, Illinois, this 11th day of May 1909.

HEINRICH KOPPERS. \Vitnesses: -Lo'ms WILPETTE,

P. GUNnE'RsoN. 

